/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraEditorSettings.h
[FNiagaraNamespaceMetadata](API\Plugins\NiagaraEditor\FNiagaraNamespaceMetadata) & AddOption ( [ENiagaraNamespaceMetadataOptions](API\Plugins\NiagaraEditor\ENiagaraNamespaceMetadataOptions) Option )